The KMC HL1 Narrow Chain is a single speed chain with 100 links and a half link chain. It is designed for use with 3/32" drivetrains and has a gold finish. The chain is made by KMC, a well-known brand in the cycling industry. The Z510HX Chain is lightweight, weighing only 0.85 pounds. It is a reliable and durable chain that is suitable for a variety of cycling applications.